Commit 4ce84f4d authored by Jose Abreu's avatar Jose Abreu Committed by David S. Miller
Browse files

net: stmmac: dwmac4/5: Add MAC loopback support 



In preparation for the addition of stmmac selftests we implement the MAC
loopback callback in dwmac4/5 cores.

Signed-off-by: default avatarJose Abreu <joabreu@synopsys.com>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent cbc19515

drivers/net/ethernet/stmicro/stmmac/dwmac4.h

+1 −0
Original line number Diff line number Diff line
@@ -160,6 +160,7 @@ enum power_event { 
#define GMAC_CONFIG_PS			BIT(15)

#define GMAC_CONFIG_FES			BIT(14)

#define GMAC_CONFIG_DM			BIT(13)

#define GMAC_CONFIG_LM			BIT(12)

#define GMAC_CONFIG_DCRS		BIT(9)

#define GMAC_CONFIG_TE			BIT(1)

#define GMAC_CONFIG_RE			BIT(0)

drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c

+15 −0
Original line number Diff line number Diff line
@@ -703,6 +703,18 @@ static void dwmac4_debug(void __iomem *ioaddr, struct stmmac_extra_stats *x, 
		x->mac_gmii_rx_proto_engine++;

}



static void dwmac4_set_mac_loopback(void __iomem *ioaddr, bool enable)

{

	u32 value = readl(ioaddr + GMAC_CONFIG);



	if (enable)

		value |= GMAC_CONFIG_LM;

	else

		value &= ~GMAC_CONFIG_LM;



	writel(value, ioaddr + GMAC_CONFIG);

}



const struct stmmac_ops dwmac4_ops = {

	.core_init = dwmac4_core_init,

	.set_mac = stmmac_set_mac,
@@ -732,6 +744,7 @@ const struct stmmac_ops dwmac4_ops = { 
	.pcs_get_adv_lp = dwmac4_get_adv_lp,

	.debug = dwmac4_debug,

	.set_filter = dwmac4_set_filter,

	.set_mac_loopback = dwmac4_set_mac_loopback,

};



const struct stmmac_ops dwmac410_ops = {
@@ -763,6 +776,7 @@ const struct stmmac_ops dwmac410_ops = { 
	.pcs_get_adv_lp = dwmac4_get_adv_lp,

	.debug = dwmac4_debug,

	.set_filter = dwmac4_set_filter,

	.set_mac_loopback = dwmac4_set_mac_loopback,

};



const struct stmmac_ops dwmac510_ops = {
@@ -799,6 +813,7 @@ const struct stmmac_ops dwmac510_ops = { 
	.safety_feat_dump = dwmac5_safety_feat_dump,

	.rxp_config = dwmac5_rxp_config,

	.flex_pps_config = dwmac5_flex_pps_config,

	.set_mac_loopback = dwmac4_set_mac_loopback,

};



int dwmac4_setup(struct stmmac_priv *priv)

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